This is what the Cum Back Inn looked like before the build demonstrated by my wife. Funny you mentioned pool. The next one is what I did with the extra truck bed. It's now a hot tub! This is before the liner went in and all the tubes hooked to the leaf blower and the sump pump with the inline heating element and the over the tubside water jets were installed.

And what she looks like now...
WHITE TRASH STYLE ALL THE WAY. This was at Green Man. Notice the green emisions coming out of the tailpipe?